Question

one of a trees rings has a diameter of 20 cm. what is the circumference of the trees ring? use 3.14 for π. c =? cm

Explanation:

Step1: Recall circumference formula

The formula for the circumference \( C \) of a circle is \( C = \pi d \), where \( d \) is the diameter.

Step2: Substitute values

Given \( d = 20 \) cm and \( \pi = 3.14 \), substitute into the formula: \( C = 3.14 \times 20 \)

Step3: Calculate the product

\( 3.14 \times 20 = 62.8 \)

Answer:

62.8